: a chemical substance that is usually produced by an animal and serves especially as a stimulus to other individuals of the same species for one or more behavioral responses

Examples of pheromone in a Sentence

Recent Examples on the Web
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Queens in honeybee colonies and other eusocial insects use pheromones to keep worker daughters from developing ovaries. Jacek Krywko, ArsTechnica, 21 July 2026 Experts caution against using Japanese beetle traps to manage infestations, since these pheromone-releasing devices can inadvertently attract more beetles to your garden. The Spruce, 21 July 2026 The strips lure and trap adult male moths using pheromones that mimic the scents of female moths. Nafeesah Allen, Better Homes & Gardens, 10 July 2026 Japanese beetles leave pheromones behind that attract more beetles. Alora Bopray, USA Today, 6 July 2026 See All Example Sentences for pheromone

Word History

Etymology

Greek phérein "to carry" + -o- + -mone (in hormone) — more at bear entry 2

Note: Name introduced by the German biochemist Peter Karlson (1918-2001) and the Swiss entomologist Martin Lüscher (1917-79) in "'Pheromones': a New Term for a Class of Biologically Active Substances," Nature, vol. 183, no. 4653 (January 3, 1959), pp. 55-56: "We propose, therefore, the designation 'pheromone' for this group of active substances. The name is derived from the Greek pherein, to transfer; hormōn, to excite. Pheromones are defined as substances which are secreted to the outside by an individual and received by a second individual of the same species, in which they release a specific reaction, for example, a definite behaviour or a developmental process."

First Known Use

1959, in the meaning defined above

Time Traveler
The first known use of pheromone was in 1959

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Cite this Entry

“Pheromone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pheromone. Accessed 1 Aug. 2026.

Kids Definition

pheromone

noun
: a chemical substance (as a scent) that is produced by an animal and serves as a signal to other individuals of the same species to engage in some kind of behavior (as mating)

Medical Definition

pheromone

noun
: a chemical substance that is produced by an animal and serves especially as a stimulus to other individuals of the same species for one or more behavioral responses

called also ectohormone

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